1123530541500 has 96 divisors (see below), whose sum is σ = 3272028754176. Its totient is φ = 299579956800.

The previous prime is 1123530541493. The next prime is 1123530541519. The reversal of 1123530541500 is 51450353211.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19535787 + ... + 19593213.

It is an arithmetic number, because the mean of its divisors is an integer number (34083632856).

Almost surely, 2^{1123530541500} is an apocalyptic number.

1123530541500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123530541500 is an abundant number, since it is smaller than the sum of its proper divisors (2148498212676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123530541500 is a wasteful number, since it uses less digits than its factorization.

1123530541500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70492 (or 70480 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 1123530541500 its reverse (51450353211), we get a palindrome (1174980894711).

The spelling of 1123530541500 in words is "one trillion, one hundred twenty-three billion, five hundred thirty million, five hundred forty-one thousand, five hundred".